写作思路：根据题目要求，以“青少年上网利大于弊”作为主题，写出青少年上网的弊处，正文：
With the progress of science and technology and the rapid development of internet, computers are installed in almost most families. Although computers are convenient, they always have their disadvantages.
随着科技的进步，网络的迅速发展，几乎大部分家庭里都安装上了电脑，电脑虽然方便，但是也总会有它的坏处。
When surfing the Internet, it is easy for teenagers to get in touch with capitalist propaganda and cultural thoughts from the Internet, and their values are prone to tilt, which leads to undesirable ideological trends such as worshiping foreign things and admiring foreign things.
上网时，青少年很容易从网络上接触到资本主义的宣传论调、文化思想等，价值观极易发生倾斜，而滋生崇洋媚外等不良思潮。
If you spend too much time on the Internet, you may have various diseases, such as eye diseases, high myopia in the light, and blindness in the heavy;
上网时间过长可能会出现各种疾病，比如眼疾，轻者高度近视，重者双目失明；
For example, lumbar strain, joint pain, and straight waist; There will also be weak language function, and people will become less talkative.
比如腰椎劳损，关节痛，直不起腰来；还会出现语言功能变弱，人变得少言寡语。
Therefore, we should control the time of surfing the Internet, not play games played by adults, and let the computer network serve us.
所以我们要控制好上网时间，不玩成年人玩的游戏，让电脑网络为我们服务。
As far as I am concerned ,we should learn English on Internet ,Not only wo should keep the speed of our world ,but also we must learn the new knowledge ,The more you learn the better you future are ,Do as well as you can today ,tomorrow you will be better!追答
望采纳
We can learn more on the Internet: English, math, physics, and so on. We can write letters to my friends, so we can help each other and learn from each other. If we have some questions , we can send e-mails to our teachers to ask for help. Besides, we can read some news. If we make some safety rules, we will have fun on the Internet.追答
In my opinion, the Internet is helpful rather than harmful as someone else thinks. As is known to all, the Internet is playing a more and more important part in our daily life. On the Internet, we can read news at home and from abroad and get as much information as we can. We can send e-mails or make phone calls to our family as well as to our friends. We can also attend the net school, read many books and even teach ourselves English. We can also enjoy music, watch matches and play computer games on the Internet. We can even do shopping on line. Besides we can improve our ability to operate the computer.
好多人都认为互联网是有害的，而我的想法和他们不同，我认为互联网对人们是有帮助的。众所周知，互联网正在成为我们日常生活的越来越重要的组成部分。通过互联网，我们足不出户就可以看到国内外的新闻还可以获得我们想要的尽可能多的信息。我们可以发送电子邮件和打电话给我们的家人和朋友。我们可以去网络学校上课，阅读教材，网络甚至可以教我们学习英语。我们还可以在网上欣赏音乐，观看比赛和玩电脑游戏。甚至我们可以在网上购物。除此之外，我们还可以提高我们操作计算机的能力。作文地带提供原版翻译。
But we should not be given to the Internet, or we’ll get our life and study destroyed. Besides, we should keep off the harmful websites. Anyhow, this doesn’t prevent the Internet becoming our friend. We can’t throw away the apple because of the core, can we?
但是我们不应该沉溺于网络，否则我们会让我们的生活和学习毁于一旦。此外，我们还应该远离有害网站。无论如何，这并不妨碍互联网成为我们的朋友。我们不能因为苹果有核，就把整个苹果都扔掉，是吧？
呵呵
追答There is a wide spread concern over the issue that should we learn English on Internet .The opinion concerning this hot topic is varies from person to person ,However the majority of people hold the view that we should learn English on Internet ,There are two factors contributing their attitudes as follows:First It's a easier way to learn it better,Second,On the Internet we can see a lot of knowledge about English ,It also can widen my horizon and broden my mind ,But different people have different views ,some people believed that we should not learn English on Internet ,On one hand ,It not very formal ,On the other hand wo will attract by other things .So it goes without saying that we should not learn English on Internet.
As far as I am concerned ,we should learn English on Internet ,Not only wo should keep the speed of our world ,but also we must learn the new knowledge ,The more you learn the better you future are ,Do as well as you can today ,tomorrow you will be better!
